AWS Bedrock Guardrail Deleted or Weakened
Detects deletion, weakening, or version management of AWS Bedrock guardrails via the DeleteGuardrail, UpdateGuardrail, DeleteEnforcedGuardrailConfiguration, or PutEnforcedGuardrailConfiguration APIs. Bedrock…
Description
Detects deletion, weakening, or version management of AWS Bedrock guardrails via the DeleteGuardrail, UpdateGuardrail, DeleteEnforcedGuardrailConfiguration, or PutEnforcedGuardrailConfiguration APIs. Bedrock guardrails enforce content, topic, word, and sensitive-information policies on model invocations. Deleting a guardrail, loosening its policies, removing or overwriting the organization-enforced guardrail configuration, or creating a new version to enforce a weakened configuration allows an adversary to bypass these protections — the cloud control-plane equivalent of disabling a security tool. This activity should be validated against approved change management and the responsible identity.
Detection logic
Its licence does not clear it for publishing here
Sunturai publishes a detection's own text where the licence it arrived under has been reviewed and permits it, and Elastic License 2.0 has not. The query as its source wrote it, its canonical form and the hash that pins this revision are in the workspace record.
Detection requirements
- Platform
- ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteWindows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
- Log source category
- event_index
Known benign triggers
- Platform or ML engineering teams may legitimately tune, iterate on, or decommission guardrails as part of normal development. If this is expected in your environment, the responsible identities can be exempted from the rule.
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
References
| Reference | Cited by |
|---|---|
| docs.aws.amazon.com/bedrock/latest/APIReference/API_DeleteGuardrail.html | 3from 3 sources |
| docs.aws.amazon.com/bedrock/latest/APIReference/API_UpdateGuardrail.html | 2from 2 sources |
| docs.aws.amazon.com/bedrock/latest/userguide/guardrails.html | 3from 2 sources |
From the source
- At source
- Open at source
- Upstream identifier
- cdf7b922-909c-440c-8df0-0efe72aa7bea
- Tagged by the source as
- Data Source: Amazon Web ServicesData Source: AWSData Source: AWS CloudTrailDomain: CloudDomain: GenAINoise: UnknownPerformance: FastPlatform: AWSProfile: RecommendedResources: Investigation GuideRule Type: Custom Query (KQL)Service: AWS BedrockTactic: Defense EvasionThreat: Unauthorized AI Usage
Licence
- Published under
- Elastic License 2.0Read the licence
- Attribution
- Required
Authorship
- Written by
- Published
- Oct 2, 2026
- Version
- 4